Doctor Shalen is a Diagnostic Radiologist and Neuroradiologist with Quantum Diagnostic Imaging Center in Plano, Texas. He completed a Neuroradiology Fellowship at the Mallinckrodt Institute of Radiology, Barnes Hospital, at Washington University Medical School in St. Louis, Missouri. His residency was in Diagnostic Radiology at the University of Minnesota Affiliated Hospitals in Minneapolis. Dr. Shalen completed a Mixed Surgical Internship at the New York Medical College Affilated Hospitals in New York City. He earned his Doctor of Medicine from New York Medical College and his Bachelor of Arts in Biology at Alfred University in Alfred, New York.